ASTM B 401-99 Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/COMP)1 - 简版

gyhh35
楼主
2009-10-15 21:04:58
急求求ACSR的美国标准ASTM
mylove2008
1 楼
2009-10-16 11:01:47